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SPOT-AGE DETERMINATION [1 record]

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Record 1 2009-09-29

English

Subject field(s)
  • Geology
  • Chronology
CONT

The integration of the CL[cathodoluminescence]-study with the SHRIMP spot-age determination relates them to the sequence of geologic events.

OBS

spot age determination: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Géologie
  • Chronologie
CONT

Récemment, des datations ponctuelles sur des cristaux de zircon sédimentaires de Jack Hills en Australie ont révélé une gamme d'âges allant de 4,4 à 4,0 Ga [...] Les roches dans lesquelles ces minéraux ont cristallisé ont été altérées, érodées et ont disparu; seuls les cristaux de zircon particulièrement résistants ont été préservés.

OBS

datation ponctuelle : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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